JC
James Connell — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Johnson-County, Iowa
Our Model Tree links this James Connell across the 1930 and 1940 US Censuses in Johnson-County, Iowa (XGBoost, ~Confirmed) — first a son (b.~1924), then head of a 7-person household.
Age 16
b. ~1924
Male
Son
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Johnson-County, Iowa |
| Surname | Connell |
| Given Name | James F. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Iowa City |
| 1935 Residence (County) | Johnson |
| Additional Details | |
| Hours Worked | 0 |
| Income (1939) | 0 |
| Highest Grade | Hs 2 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Iowa City |
| Est. Birth Year | ~1924 |
Household Members
Census records only state relationship to the household head.
Pairwise kinship is derived (~90–95% accurate), not recorded.
Step/blended families and boarders can break it.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Thomas Connell | Head | — | 56 | ~1884 |
| Robert Connell | Son | — | 13 | ~1927 |
| Agnes Connell | Spouse | — | 53 | ~1887 |
| William Connell | Son | — | 15 | ~1925 |
| Thomas Connell | Son | — | 24 | ~1916 |
| Joseph Connell | Son | — | 21 | ~1919 |
| James Connell | Son | — | 16 | ~1924 |
Census Appearances
1930
Johnson, Iowa
Son, age 6
Johnson, Iowa · implied b. ~1924 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Connell |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Johnson-County, Iowa
Son, age 16
Johnson-County, Iowa · implied b. ~1924 — 7 household members
| Surname | Connell |
| Given Name | James F. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Iowa City |
| 1935 Residence (County) | Johnson |
| Hours Worked | 0 |
| Income (1939) | 0 |
| Highest Grade | Hs 2 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
Model Tree
An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Our Model Tree links James Connell across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
James Connell
Son · 1940 · age 16 · b. ~1924 · Iowa
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Sibling
Thomas Connell
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Connell
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Connell
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Connell
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Johnson-County, Iowa
Open full size
1940 US Federal Census — Johnson-County, Iowa
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-01171-00638)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 42 | Edward G. Fleming | 48 | Head | — | Indiana |
| 43 | Blanche L. Fleming | 44 | Wife | Laundress | Ohio |
| 44 | Cora B. Farnsworth | 70 | Mother | — | Indiana |
| 45 | George J. Hoffman | 45 | Head | Laborer | Iowa |
| 46 | Bertha F. Hoffman | 61 | Wife | — | Ohio |
| 47 | Charles E. Smith | 35 | Head | Laborer | Iowa |
| 48 | Harriet M. Smith | 29 | Wife | — | Iowa |
| 49 | Evelyn L. Smith | 13 | Daughter | — | Iowa |
| 50 | Norma J. Smith | 10 | Daughter | — | Iowa |
| 51 | Jimmie E. Smith | 2 | Son | — | Iowa |
| 52 | Sandra R. Smith | 0 | Daughter | — | Iowa |
| 53 | Carl C. Coppe | 35 | Head | Truck Driver | Iowa |
| 54 | Ella L. Coppe | 31 | Wife | — | Iowa |
| 55 | Delores A. Coppe | 1 | Daughter | — | Iowa |
| 56 | Ann E. Mooney | 66 | Mother-in-law | — | Iowa |
| 57 | Patrick L. Mooney | 29 | Brother-in-law | Clerk | Iowa |
| 58 | Blanche Cullen | 53 | Head | — | Iowa |
| 59 | Frederick Beard | 28 | Head | Mechanic | Iowa |
| 60 | Roberta Beard | 25 | Wife | Maid | Iowa |
| 61 | Thomas Connell | 56 | Head | Plumber | Iowa |
| 62 | Agnes M. Connell | 53 | Wife | — | Iowa |
| 63 | Thomas Jr. Connell | 24 | Son | Plumber | Iowa |
| 64 | Joseph J. Connell | 21 | Son | Plumber | Iowa |
| 65 | James F. Connell THIS PERSON | 16 | Son | — | Iowa |
| 66 | William N. Connell | 15 | Son | — | Iowa |
| 67 | Robert J. Connell | 13 | Son | — | Iowa |
| 68 | James H. Herring | 46 | Head | Truck Driver | Iowa |
| 69 | Ruth H. Herring | 43 | Wife | — | Iowa |
| 70 | Dorothy M. Herring | 11 | Daughter | — | Iowa |
| 71 | Fred C. Jahnke | 67 | Head | — | Iowa |
| 72 | Lena M. Jahnke | 61 | Wife | — | Iowa |
| 73 | Robert W. Scott | 25 | Head | Mechanic | Iowa |
| 74 | Lucille E. Scott | 31 | Wife | — | Iowa |
| 75 | Norma M. Scott | 1 | Daughter | — | Iowa |
| 76 | Thoma M. May | 62 | Head | — | Illinois |
| 77 | Warren L. May | 20 | Son | — | Iowa |
| 78 | Jean M. May | 21 | Daughter | Operator | Iowa |
| 79 | John D. Newbro | 72 | Head | — | Michigan |
| 80 | Alice Newbro | 75 | Wife | — | Massachusetts |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 United States Federal Census (NARA). Our Model Tree links this person across census decades using XGBoost-based record linkage, with per-link confidence scores. Household corroboration strengthens the signal when co-residents appear on the same census pages in multiple years.
Source: National Archives and Records Administration (NARA)